[INFO] fetching crate lf 0.0.0...
[INFO] testing lf-0.0.0 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate lf 0.0.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate lf 0.0.0 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lf 0.0.0
[INFO] finished tweaking crates.io crate lf 0.0.0
[INFO] tweaked toml for crates.io crate lf 0.0.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 83edb5de25d6714ec2359517366a882ef6900fc9fb3292019c6f8e5f1ab45ccd
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "83edb5de25d6714ec2359517366a882ef6900fc9fb3292019c6f8e5f1ab45ccd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "83edb5de25d6714ec2359517366a882ef6900fc9fb3292019c6f8e5f1ab45ccd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83edb5de25d6714ec2359517366a882ef6900fc9fb3292019c6f8e5f1ab45ccd", kill_on_drop: false }`
[INFO] [stdout] 83edb5de25d6714ec2359517366a882ef6900fc9fb3292019c6f8e5f1ab45ccd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 11be9ddd2286dd78620276e8417cd5cfa2ffd05cb13e9e4c171327b33e4b8d9d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "11be9ddd2286dd78620276e8417cd5cfa2ffd05cb13e9e4c171327b33e4b8d9d", kill_on_drop: false }`
[INFO] [stderr]    Compiling lf v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.08s
[INFO] running `Command { std: "docker" "inspect" "11be9ddd2286dd78620276e8417cd5cfa2ffd05cb13e9e4c171327b33e4b8d9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11be9ddd2286dd78620276e8417cd5cfa2ffd05cb13e9e4c171327b33e4b8d9d", kill_on_drop: false }`
[INFO] [stdout] 11be9ddd2286dd78620276e8417cd5cfa2ffd05cb13e9e4c171327b33e4b8d9d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 984eb4c0bbd680352a12f09df31f14f956a9ea4b6a4a8628e432d1df1fbdeb8d
[INFO] running `Command { std: "docker" "start" "-a" "984eb4c0bbd680352a12f09df31f14f956a9ea4b6a4a8628e432d1df1fbdeb8d", kill_on_drop: false }`
[INFO] [stderr]    Compiling lf v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "984eb4c0bbd680352a12f09df31f14f956a9ea4b6a4a8628e432d1df1fbdeb8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "984eb4c0bbd680352a12f09df31f14f956a9ea4b6a4a8628e432d1df1fbdeb8d", kill_on_drop: false }`
[INFO] [stdout] 984eb4c0bbd680352a12f09df31f14f956a9ea4b6a4a8628e432d1df1fbdeb8d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b4da87f0c54ee18ed3a223c509024f67bb0a6c2c46d26759212ffef1ccf3a7c1
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b4da87f0c54ee18ed3a223c509024f67bb0a6c2c46d26759212ffef1ccf3a7c1", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/lf-3c319e55425bbfb0
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests lf
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b4da87f0c54ee18ed3a223c509024f67bb0a6c2c46d26759212ffef1ccf3a7c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4da87f0c54ee18ed3a223c509024f67bb0a6c2c46d26759212ffef1ccf3a7c1", kill_on_drop: false }`
[INFO] [stdout] b4da87f0c54ee18ed3a223c509024f67bb0a6c2c46d26759212ffef1ccf3a7c1